Touch panel, manufacturing method thereof, display device, and electronic apparatus
View Patent ↗A touch panel includes: a wire substrate and a cover substrate joined to each other, wherein the wire substrate includes a sensor electrode; a plurality of signal wires that are electrically connected to the sensor electrode and extend along a circumference of the sensor electrode; and a first light blocking layer that covers at least a signal wire disposed closest to the sensor electrode of the plurality of signal wires, and wherein the cover substrate includes a second light blocking layer that faces a continuous region including an outer edge region of the first light blocking layer and a signal wire disposed so as to be the most distant from the sensor electrode.
1. A touch panel comprising:
a wire substrate and a cover substrate joined to each other,
wherein the wire substrate includes
a sensor electrode;
a plurality of signal wires that are electrically connected to the sensor electrode and extend along a circumference of the sensor electrode; and
a first light blocking layer that covers at least a signal wire disposed closest to the sensor electrode of the plurality of signal wires, and
wherein the cover substrate includes
a second light blocking layer that faces a continuous region including an outer edge region of the first light blocking layer and a signal wire disposed so as to be the most distant from the sensor electrode.
2. The touch panel according to claim 1 , wherein each of the signal wires includes
a first wire extending along the circumference of the sensor electrode;
an external connection terminal connected to one end of the first wire; and
a second wire connected to the other end of the first wire and the sensor electrode, and
wherein the first light blocking layer covers at least the first wire of the first wire and the second wire.
3. The touch panel according to claim 1 , wherein the wire substrate and the cover substrate are joined to each other via an adhesive layer.
4. The touch panel according to claim 3 , wherein the wire substrate has a first insulating substrate or a first insulating layer that holds the sensor electrode, the plurality of signal wires, and the first light blocking layer,
wherein the cover substrate has a second insulating substrate or a second insulating layer that holds the second light blocking layer, and
wherein the first insulating substrate or the first insulating layer and the second insulating substrate or the second insulating layer face each other with the sensor electrode, the plurality of single wires, the first light blocking layer, and the second light blocking layer interposed therebetween.
5. The touch panel according to claim 4 , wherein the second insulating substrate or the second insulating layer has a size larger than the first insulating substrate or the first insulating layer, and
wherein the second light blocking layer is also formed in a region which does not face the first insulating substrate or the first insulating layer.
6. A display device comprising:
an image generation unit that generates an image;
a touch panel that is disposed on a surface of the image generation unit; and
a control unit that controls the image generation unit and the touch panel,
wherein the touch panel includes a wire substrate and a cover substrate joined to each other,
wherein the wire substrate includes
a sensor electrode;
a plurality of signal wires that are electrically connected to the sensor electrode and extend along a circumference of the sensor electrode; and
a first light blocking layer that covers at least a signal wire disposed closest to the sensor electrode of the plurality of signal wires, and
wherein the cover substrate includes
a second light blocking layer that faces a continuous region including an outer edge region of the first light blocking layer and a signal wire disposed so as to be the most distant from the sensor electrode.
7. An electronic apparatus comprising:
a display device,
wherein the display device includes
an image generation unit that generates an image;
a touch panel that is disposed on a surface of the image generation unit; and
a control unit that controls the image generation unit and the touch panel,
wherein the touch panel includes a wire substrate and a cover substrate joined to each other,
wherein the wire substrate includes
a sensor electrode;
a plurality of signal wires that are electrically connected to the sensor electrode and extend along a circumference of the sensor electrode; and
a first light blocking layer that covers at least a signal wire disposed closest to the sensor electrode of the plurality of signal wires, and
wherein the cover substrate includes
a second light blocking layer that faces a continuous region including an outer edge region of the first light blocking layer and a signal wire disposed so as to be the most distant from the sensor electrode.
8. A manufacturing method of a touch panel comprising:
preparing a wire substrate which includes a sensor electrode, a plurality of signal wires electrically connected to the sensor electrode and extend along a circumference of the sensor electrode, and a first light blocking layer covering at least a signal wire disposed closest to the sensor electrode of the plurality of signal wires, and preparing a cover substrate which includes a second light blocking layer; and
joining the wire substrate and the cover substrate to each other such that the second light blocking layer faces a continuous region including an outer edge region of the first light blocking layer and a signal wire disposed so as to be the most distant from the sensor electrode.